All travelers to Australia must have a valid visa before
boarding their plane; they cannot apply for a visa on arrival. (NB:
The only exceptions are New Zealand and Norfolk Island passport holders
who will be issued a visa on arrival in Australia and who normally do
not need to lodge a visa application prior to their departure, unless
there are character or health concerns).

Malaysia
Malta
Monaco
The Netherlands
Norway
Portugal
Republic of San Marino
Singapore
South Korea
Spain
Sweden
Switzerland
Taiwan*
United Kingdom - British Citizen
United Kingdom - British National (Overseas)**
United States of America
Vatican City

* Holders of Taiwan passports can only be processed
for an ETA if resident in and applying in Taiwan.
** Holders of UK passports which indicate their nationality to be
British National (Overseas) (BNO) can be processed for an ETA if
applying via a travel agent, airline, or at an office of the department.
BNO passport holders cannot apply for their ETA online.